NV E620 and DNV Grade E620 steel plate Supplier
Gangsteel supply NV E620 and DNV Grade E620 steel plate. We are NV E620 Extra high strength steel plates and DNV Grade E620 certification supplier.
Related Words: NV E620, DNV Grade E620
Adopt standard: DNV Extra high strength
steel plate
DNV Extra High Grade:
NV E620 steel grade.
NV E620 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in NV A690.
NV E620 steel grade shall be killed and find grain treated. Steel grade of strength levels up to and including 500Mpa should be supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa shall be supplied in TM or QT delivery condition.
Gangsteel is specialized in Super thickness
steel grade. We have much experience in manufacture and exporting extra high
strength steel grade.
For more information in NV E620 steel
grade, please refer to the following:
NV E620 and DNV Grade E620 steel plate Chemical composition heat analysis
| Element | NV E620 Max % | Element | NV E620 max % |
| C | 0.20 | Ni | 0.40 |
| Mn | 1.70 | Mo | 0.08 |
| Si | 0.10-0.55 | Al | 0.020 min |
| S | 0.030 | Nb | 0.20-0.05 |
| P | 0.030 | V | 0.05-0.10 |
| Cu | 0.35 | Ti | 0.0007-0.05 |
| Cr | 0.20 | N |
NV E620 and DNV Grade E620 steel plate Mechanical properties,
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| -40 degree | |||||
| NV E620 | 8-260 | 620 | 720-890 | 15 | 41J |
Note: the impact energy under less 150mm thickness
If you have any need in NV E620 and DNV Grade E620 steel plate, please feel free to contact us soon to get a competitive price. pt’>